AD6649BCPZ

Overview

The AD6649BCPZ is a dual-channel IF diversity receiver featuring integrated 14-bit, 250 MSPS ADCs and digital downconverters. It supports input frequencies up to 2 GHz with signal bandwidths of 75 MHz or 95 MHz. Key electrical parameters include an SNR of 73.0 dBFS at 185 MHz input and 245.76 MSPS sampling rate, and an SFDR of 85 dBc. The device operates on a single 1.8V supply with total power consumption of 1W. It utilizes LVDS outputs and includes a 32-bit NCO and FIR filter. The component is housed in a 64-lead LFCSP package measuring 9.1 x 9.1 mm.

Feature Summary

• Integrates dual high-speed analog-to-digital converters with digital downconversion capabilities for direct IF sampling.
• Includes programmable digital signal processing blocks such as a numerically controlled oscillator and finite impulse response filters.
• Features automatic gain control mechanisms to manage input signal levels and prevent overload conditions.

Applications

• Diversity radio systems
• Multi-mode digital receivers supporting TD-SCDMA, WiMax, WCDMA, CDMA2000, GSM, EDGE, and LTE standards
• Software-defined radio platforms
• Broadband data communication applications

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm exact performance characteristics and packaging options. Ensure compatibility with system voltage requirements and thermal management specifications. Confirm that the selected variant meets the necessary regulatory compliance standards for the intended deployment environment. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring simultaneous multi-channel signal acquisition with integrated digital processing. Consider the trade-off between power consumption and signal integrity metrics such as noise figure and dynamic range. Evaluate the physical footprint constraints against the 64-lead LFCSP package dimensions. Assess the need for specific filtering configurations provided by the internal digital block before finalizing the design architecture.

Part Context

This part belongs to the AD6649 family of mixed-signal RF receivers designed for wireless infrastructure. It represents a solution for reducing bill-of-materials costs by integrating analog and digital functions typically found in separate chips. The device addresses the industry demand for smaller form factors in base station and access point designs.

Replacement Considerations

Public confirmed substitute part number: AD6649.